Home / 7,485.30-11,236.05-4,715.10

Finding the Fourth Proportional to 7,485.30, 11,236.05 and 4,715.10

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Solution

The fourth proportional to 7,485.30, 11,236.05 and 4,715.10 is: 7,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.30 : 11,236.05 = 4,715.10 : x
  2. Step 2: Convert to fraction form
    7,485.30/11,236.05 = 4,715.10/x
  3. Step 3: Cross multiply
    7,485.30x = 11,236.05 × 4,715.10
  4. Step 4: Simplify right side
    7,485.30x = 52,979,099.36
  5. Step 5: Solve for x
    x = 52,979,099.36/7,485.30
  6. Step 6: Final answer
    x = 7,077.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.